Question
Biology Question on Principles of Inheritance and Variation
In a cross between AABB x aabb, the ratio of F, genotypes between AABB. AaBB, Aabb and aabb would be
A
9 : 3 : 3 : 1
B
2 : 1 : 1 : 2
C
1 : 2 : 2 : 1
D
7:5:3: 1.
Answer
1 : 2 : 2 : 1
Explanation
Solution
In a cross between AABB x aabb, the ratio of F, genotypes between AABB, AaBB, Aabb and aabb would be 1 : 2 : 2 : 1. Genotype is the genetic make up of an individual. This may refer to just one trait or it may refer to the combination of many or all of the traits of the individuals.